Put up a pdf (if you have TeX you can get a pdf), but don't make some technical argument that makes you sound slow. This is marketing not a technical talk.
The CLHS[1] they mentioned has been available online for ages. What they're talking about is making a more modern site. Generating a PDF from the spec wouldn't get them any closer to that goal.
Then don't put a specification link on the home page and wait until it is done. The text is non-helpful to marketing the language particularly when books are actually available and linkable that can be read now.
IIRC the legal situation of the hyperspec is a bit weird and converting to other formats could be problematic. (Perhaps someone else may be more precise)